Define capacitance. [Foreign 2010] 33.A parallel plate* capacitor is charged by a battery. 42.A small sphere of radius a carrying a positive charge q is placed concentrically inside a larger hollow conducting shell of radius b(b> a). /BitsPerComponent 1 Ans. (ii)The interior of a conductor can have no excess charge in static situation. (i) The total charge on the capacitor remains conserved on introduction of dielectric slab. Examples of conductors are metals and graphite. Their combination, labeled CS in the figure, is in parallel with C3. (b)electric field between the plates and Study Packages /ColorSpace [/Indexed /DeviceRGB 255 11 0 R ] Ans. 1.The given graph shows the variation of charge q versus potential difference V for two capacitors Cl and C2. These electrons are free for moving within the metal but not free to leave the metal. In the case of equal capacitance: What total capacitances can you make by connecting a 5.00 F and an 8.00 F capacitor together? Find out the ratio of the energy stored in the combined system to that stored initially in the single capacitor. [Foreign 2011] For any n 1, let Pn be the statement that 6n 1 is divisible by 5. Also, the capacitance of capacitor increases to K times of original values. (i)Show that in a parallel platecapacitor if the medium between the plates of a capacitor is filled with an insulating substance of dielectric constant K, its capacitance increases. Examples of conductors are metals and graphite. /XStep 8 Calculate the effective capacitance in series and parallel given individual capacitances. Find the ratio of (i) the net capacitance and (ii) the energies stored in the combination before and after the introduction of the dielectric slab. 4 0 obj Strategy. Entering the expressions for V1, V2, and V3, we get. 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